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(No Model.) 4 Sheets-Sheet 1.

J. H. HASKINS. TAUK DRIVINGMAGHINE.

Patented May 26, 1891.

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(No Model.) 4 sheets-sheen 2. J. H. HASKINS.

TACK DRIVING MACHINE.

No. 453,175. Patented May 26, 1891.

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J. H. HASKINS.

TACK DRIVING MAGHINB.

ING. 453,175. @aimed May 26, 189,11.

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(No Model.) 4 Sheets-Sheet 4.

J. `H. HASKINS.. TACK DRIVING MACHINE.

No. 453,175. n Patented May 26, 1891.

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v c W Wang' UNITED STATES PATENT OFFICE.

JAMES I-I. -HASKINS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE MCCORMICKI-IARVES'IING MACHINE COMPANY, OF SAME PLACE.

TACK-DRIVING IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 453,175, dated May 26,1891.

Application filed February 4, 1889. Serial No. 298,581. (No model.)

To all whom t may concern,.-

Be it known that I, JAMES I-I. HAsKiNs, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new Aand useful Improvements in Tack-Driving Machines,of which the following is a speciiication.

My improvement relates, primarily, to mechanism for use in machines forapplying slats to canvas aprons for harvester-conveyers and similarpurposes, such as invented by John F. Kingwill, of this city, and madethe subject of an application filed by him in the Patent Office of theUnited States on the lst day of March, 1886, Serial No. 193,964, and itwill accordingly be described in connection with certain features ofsuch a machine, without,

however, intending thereby to limit it to any such specic use.

The invention consists partly in a novel feed device for supplying thetacks to the operation of the drivers; further, in improvements in thedrivers themselves and in the guide for such drivers; also, inimprovements in the mode of operating the drivers, and finally invarious subordinate'features and details of construction hereinafterdescribed and claimed.

In the drawings, Figure lis a top plan view of so much of a Slat-tackingmachine having my invention applied thereto as is necessary to anunderstanding of the latter, parts, however, being broken away on thecorrespondingly-numbered line in the ensuing figure; Fig. 2, a rearelevation of said machine, broken away, however, on thecorrespondingly-numbered line in the precedingl ligure; Fig. 3, avertical longitudinal section through said machine on the line 3 3 inthe iirst figure; Fig. 4, an enlarged detail of the tack feeding anddriving mechanism in section on the correspondingly-numbered line in thefifth figure; Fig. 5, an enlarged detail on the same scale as thepreceding figure and sectioned on the line 5 5 of said last figure; Fig.6, an enlarged detail of a tack-driver and its guide, partly in sectionon the line 6 6 in the eighth figure; Fig. 7, also an enlarged detail ofthe parts in the preceding gure, partly in section on the line 7 7 inthe eighth figure Fig. 8, a bottom plan view of the tack-driver and itsguide,

angles to the movement of the conveyer and having a slat restingtherein.

C is the anvil, over which the carrier is drawn bythe chains and uponwhich it teniporarily rests while the tack-drivers descend and insert agang of tacks. Vertically above this anvil, or nearly so, is theintermittentlydriven plunger-shaft D, having eccentrics D', which turnin yokes-or straps at the upper end of links D2, and these are hinged orpivroted at their lower ends to the plunger-head D3, which works inslideways D4, attached to the respective sides of the frame, therelations being such that as the slat, or whatever it may be, isbroughtyto rest on the anvil the plunger-head descends to actuat-e thedrivers and insert the tacks. and lettered the parts are, or may be,substantially identicalto those heretofore employed in said Kingwillmachine and in other tack-driving machines.

The description of the improved drivers and their guides and of themanner in which they are operated will come more naturally after thedescription of the tack-feeding devices.

The tacks which I prefer to use are doublepointed or staple tacks, andtherefore I will describe the feed and driving devices as adapted to theemployment of such tacks; but the principle of the invention may beapplied to the use of single-pointed tacks, as will be presentlyexplained. At a point suitably elevated above the anvil and thereceiving devices commences a number of tackways E, consisting of barsset edgewise and of sufficient thickness to be properly saddledby andguide a staple-tack. There will be as many of these tackways as ofdrivers, and they will lead downward and be spread outward from As thusfar described IOO - reaches the first.

each other so as to conduct each to its rcspective driver. At the upperend, however, they will be massed together almost parallel and with butsufficient space between them to allow tacks that fail to saddle them tofall through freely. Along the massed length they will be inclosed atthe head and sides by a hopper E', which may be termed thesorting-hopper, and which, together with the ways,7 will in practicehave a slight vibratory or sidewise reciprocation. Located beneath thesorting-hopper and extending some distance beyond it is areceiving-hopper E2, from which the tacks may be scooped or shoveled upand thrown into the sorting-hopper, each to find its respective way orto fall through the interstices back into thereceivinghopper. Thetackways are intercepted before they quite reach the gang-drivers by atransverse shaft E3, which is intermittently rocked once to each descentand rise of the plungerhead by means of a rack E4, moving in guides eatone end of the machine, the pinion e', with which said rack engages,and a link e2, connected with the crank egon the plunger-shaft,orbyother suitable means, and it carries one or more intermittentfeed-disks E5, according to the number of tackways, each of whichcorresponds with and is 'in the same plane as the proximate parts of theupper and lower sections of the tackways. Each disk, has a single notche4, so located that as the shaft is rocked in tl1`e descent of theplunger this no tch will be carried up over and back to the terminus ofthe upper section of the corresponding tackway, which comes to a pointor is otherwise brought into practical contact with the periphery of thedisk, and when the reverse movement of the shaft takes place, as theplunger-head rises such notch will be carried up over and down until itreaches the upper end of the lower section of said way, which is also inpractical contact with the periphery of the disk and is in line, orthereabout, with the sloping upper edge of the upper section, where itreaches the disk, so that the notch when it reaches the second sectionwill be considerably lower than when it The upper portion of thefeed-disk rises above the sloping line otl the y tackway, and so servesto form a cut-off between the two sections, and to further insure thiscut-oli? action it is saddled by a gravitybar or cut-off bar F, which ishinged to iuvcrted bridges jsecured to the under side of the tackway andset out therefrom suiiiciently to allow the tacks to pass t-hrough. Fromthe pivotal point the gravity-bar is parallel with the tackway, butraised sufficiently above it to permit the heads of the tacks to passfreely until it reaches the cut-off disk, where it is curved over andrests upon the upper periphery of such disk, its lower end descendingnearly to the lower section of the .tackway and being separatedtherefrom only by the width of the notch in the disk. It also may have astop-finger j, playing in aslotf2 in the cross-bar F', which serves tosupport the direct drivers and their guides and may therefore be calledthe cross-guide. This inger serves to prevent it from sinking so farfrom any cause as to prevent' the free feed of the tacks until theyreach the disk and from resting too heavily on thelatter. Nowit will beevident that, the notch in the cut-oit disk being of just suiticientdepth and width to admit the head of asingle tack, whenever the disk isrocked over and upward to bring the notch to the upper section as theplunger descends it will receive a single tack from said upper section,and then, when it is rocked over and downward as the plunger-headascends, it will carrya tack up with it,beneath the gravitybar orcut-off bar, or any spring-pressure that may be used in lieu of thelatter, and will deliver such tack to the lower section of the tackway,down which it will then be free to slide to take the place of the tack just driven when the plunger head last descended.

To prevent the point of the tack resting against the cut-olf disk frombeing tipped or thrown out by the pressure of the row of tacks behind itbefore or at the moment it is received in the feed-notch, a bent wire orspring-stop F2 is attached to the bracket F3, which supports the lowerend of the tackway from the cross-guide, and arranged so that its endcomes against the side of the cutoff disk and receives and sustains thepoint of the tack, as shown in Fig. et, until it has been separated fromthe others and carried up beneath the cut-off bar by the motion of thedisk.

In driving staple taglgs to unite canvas aprons to their slats it'isimportant that they shall be driven diagonally of the length of theslats. Therefore the lower section of the tackway is curved beyond thecut-off disk, as in Fig. 5, to deliver the tack at a suitable angle to asaddle f3, set out from a spring F", bolted at its upper end to thefront of the cross -guide and extended down along the face thereof andturned, as at F", -to pass about horizontally under said cross-guide andfinally bent downward on a curve f5 until it becomes nearlyperpendicular and terminates in the saddle, the last-mentioned curvebeing intended to be struck by a cam or wedge, so as to push the saddleout of the way at the proper moment, as presently explained.

G represents the drive -guides, which, to prevent twist and forconvenience in constructing, are rectangular in cross-section. They aresupported in oblique ways g in the cross-guide, and instead of beingrigid therewith are intended to play up and down in said ways, theirnormal position being somewhat above the saddle and its spring, whichlatter enters through a cross-slot g in their lower ends until itsperpendicular lower part is brought adjacent to the driveway g2, asshown in Fig. lO, and the tack, as it rests IOO IIO

upon the saddle, is brought immediately beneath the driveway, so thatwhen the guide descends it may receive the tack in such driveway andpass over and along it until it comes into contact with the materialresting on the anvil, when it will stop and hold the tackv in positionfor the descent of the driver, as indicated in Figs. 9 to 11, the saddleremaining, however, undisturbed for the moment.

H is the driver, having a disk at its upper end which enters a groove onthe under face of the plunger-head and is secured therein by a plate. Itis con-nected with its guide by means of a pin h, entering alongitudinal slot h in one side of said guide, this slot being ofsufficient length to allow the guide to shut down over the tack and cometo a stop before any relative movement takes place between it and thedriver. Between the head of the latter and the head of the guide thedriver is encircled by a coiled spring H of sufficient strength to forcedown the guide with the descent of the plunger-head and bring it firmlyagainst the object to be tacked before the driver itself begins to movealong the slot in the side of the guide. Thus it will be evident thatthe tack will be received and supported in the driveway in the guidebefore the driver is carried down upon its head. The main `part of thedriver is a iat bar h2 of the thickness and width corresponding to thehead of the tack and so just filling the driveway, but at right anglesto this bar it has a central longitudinal rib h3, which extends or mayexfrom twisting in the cross-guide.

tend entirely through that side of the guide that is entered by thecurved and perpendicular reach of the saddle-spring, and at the lowerend this rib has a bevel h4, which, as the driver continues to descendafter the guide comes to a stop, strikes against the curved part of thesaddle-spring and pushes the latter outward, withdrawing the saddle frombeneath the head of the tack before the latter is struck by the driveritself, as represented in Fig. ll, so that the further descent of' thedriver will force the tack home.

I do not intend to be limited to the specific construction hereindescribed so long as the principle of my invention is not departedfrom-as for instance, the tack-guides instead of being slotted andadapted to be saddled only by staple-tacks may, together with thecut-off disk, have a groove or channel for the purpose of feedingsingle-pointed tacks. The receiving-guide need not necessarily berectangular in outline so long as it is prevented The tacks need not bedriven obliquely, the cut-orf bar may be represented by a suitablespring saddling the upper part of the cut-off disk. The latter may berocked or oscillated by different mechanism from that shown, and themethod of delivering tacks to the tackways may be varied from thatexplained.

I claim- 1. The combination, substantially as hereinbeforev set forth,with a tackway and a driver, of a notched cut-off disk and a rockshaftupon which the latter' is mounted.

2. The combination, substantially as hereinbefore set forth, with atackway and a driver, of the notched cut-off disk, the rockshaft uponwhich it is mounted, and the cutoff bar saddling the upper periphery ofsaid disk.

3. The combination, substantially as hereinbefore set forth, with atackway and its driver, of the notched cut-off disk, the rockshaft uponwhich it is mounted, the cut-off barsaddling the upper periphery of saiddisk, and the inverted bridge by which it is pivoted to the tackway at adistance from said disk. 4. The combination, substantially ashereinbefore set forth, with a tackway, of the notched cut-off disklocated between the upper and lower sections thereof, the saddle towhichthe lower section of said tackway delivers, the spring by whichsaid saddle is supported, the reciprocating driverguide arranged todescend over the tack carried by said saddle, the driver playing throughsaid guide and having a springinterposed between itself and the latter,and the bevel at the lower end of said driver, whereby the saddlespringis forced aside and the saddle withdrawn from the tack as the driverdescends.

5. The combination, substantially as hereinbefore set forth, with thetackway and the Vnotched cut-oit disk reciprocating therein, of

the cut-off bar abovesaid tackway and disk, and the spring-stop restingagainst the side of said disk at the lower end of the first section ofthe tackway.

6. The combination, substantially as here- ,inbefore set forth, of theplunger-shaft, the

plunger-head, the vcrossguide, the driverguide playing therein, thedriver connected to said guide by a pin playing in a vertical slot inone of it-s sides, and the spring interposed between the driver and itsguide.

7. The combination, substantially as hereinbefore set forth, with thetack-guides and their cut-off disks, of the rockshaft upon which thelatter are mounted, the pinion on said rock-shaft, the rack engagingwith said pinion, the crank upon the plunger-shaft, and thepin-connecting the rack with said crank.

8. The combination, substantially as hereinbefore set forth, of thenotched cut-off disk, sectional tackways having the lower section curvedto deliver the tack obliquely, the crossguide, the driver-guide arrangedobliquely to the cross-guide and reciprocating therein, the driverplaying through said latter guide, and the spring between the driver andthe driverguide, whereby the latter is first carried down over the tackand the driver then further descends to carry said tack home.

JAMES H. I-IASKINS.

Witnessesz- Enwn. P. MARTIN, A. A. BROCK.

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